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WPA50
50 Watt Single Output Eighth Brick DC/DC Converter
The WPA50 Series is a 50 Watt single output, low-profile DC-DC converter in an industry standard package of 2.3" x 0.9" x 0.35" (58.42mm x 22.86mm x 9.0mm). The WPA50 uses unique proprietary technologies to deliver ultra-high efficiencies and excellent thermal performance. It includes extensive control and protection features for maximum flexibility and provides
Output Overcurrent Protection Industry Standard Footprint & Size Hiccup Mode 2.3" x 0.9" x 0.35" Input Side "L" Filter (58.42mm x 22.86mm x No Minimum Load Required 9.0mm) No Heatsinks High Efficiency - Up To 91% Low Profile and Low Weight WideInputV oltageRange: Thermal Shutdown 36 - 75VDC with Remote On/Off Control 100V100mS Input Voltage Transient Isolation Voltage of 1500 VDC Protection Soft Start Output Voltages: 1.2 V, 1.5V, 1.8V, High Reliability 2.2V, 2.5V, 3.3V & 5.0V Fixed Frequency Operation Output Trim Function with Industry Safety per UL/CUL 60950, EN Standard Equations 60950, Operational Insulation Remote Output Sense Meets TNV-SELV Isolation Remote ON/OFF (Positive or Requirements Negative Logic) Meets Conducted Emissions Requirements Output Overvoltage Protection of FCC Class B and EN55022 Class B
a versatile solution for a whole range of applications with its input voltage range of 36-75 VDC and output voltages between 1.2VDC and 5.0VDC. The power dissipation of the WPA50 series is so low that a heat sink is not required. The product features fast dynamic response characteristics and low output ripple critical for low voltage
applications. WPA DC-DC converter modules are certified to UL/CUL 60950, and VDE to EN60950. It meets CISPR22/ EN55022/FCC15J Class B specs for EMI levels with external filtering. This high quality and highly reliable product is competitively priced and an ideal solution for distributed power, telecoms and datacom applications.
PRODUCT SELECTION CHART
NOMINAL INPUT VOLTAGE (VDC) 48 48 48 48 48 48 48 RATED OUTPUT VOLTAGE (VDC) 1.2 1.5 1.8 2.2 2.5 3.3 5.0 OUTPUT CURRENT MIN RATED LOAD(A) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OUTPUT (A) 18 18 18 18 18 15 10 INPUT CURRENT RATED LOAD (A) 0.65 0.72 0.82 0.99 1.11 1.20 1.18 EFFICIENCY (%) MIN 71 79 83 84 85 89 90
MODEL WPA50R48S012 WPA50R48S015 WPA50R48S018 WPA50R48S022 WPA50R48S025 WPA50R48S033 WPA50R48S050
ABSOLUTE MAXIMUM RATINGS
Output Short-Circuit Duration Internal Power Dissipation Lead Temperature (soldering, 10 seconds max) Continuous Input Voltage Storage Temperature Input to Output Isolation Continuous As low as 5 Watts +300C 75 VDC +125C 1500 VDC
SPECIFICATIONS, ALL MODELS
Specifications are at TA = +25C, Airflow = 300LFM (1.5m/s) at nominal input voltage unless otherwise specified.
PARAMETER
INPUT Voltage Range Reflected Ripple Current Transient Withstand (Susceptibility) Inrush Charge Maximum Input Current 1.2 Vout 1.5 Vout 1.8 Vout 2.2 Vout 2.5 Vout 3.3 Vout 5.0 Vout INPUT CONTROL Temperature Shutdown Temperature Hysteresis Quiescent Standby Current Power Dissipation Undervoltage Shutdown Undervoltage Hysteresis ISOLATION Input/Output Isolation Voltage Resistance Capacitance Leakage Current OUTPUT Rated Power
CONDITIONS
Vin = 48V, Io=I Rated Vin = 48V, Io=I Rated 100ms Vin=36V
MIN
36
TYP
48 420 42 0.75 0.925 1.10 1.31 1.5 1.6 1.55
MAX
75 550 100
UNITS
VDC mApk-pk V mC A A A A A A A
INPUT
Vin = 48V No Load, Remote On/Off Disabled, Vin = 48Vdc 31.50 0.50
3
115 5 4 300 35.0 3.00
C C mA mW V V
32.5 2
240 Vrms, 50Hz WPA50R48S012 WPA50R48S015 WPA50R48S018 WPA50R48S022 WPA50R48S025 WPA50R48S033 WPA50R48S050 WPA50R48S012 WPA50R48S015 WPA50R48S018 WPA50R48S022 WPA50R48S025 WPA50R48S033 WPA50R48S050 1.08 1.35 1.62 1.98 2.25 3.00 4.50
1500 10 1.5 100 22 27 33 40 45 50 50 1.0
2250
VDC MW nF mA W W W W W W W % of VNOM V V V V V V V %/C % % mVp-p
Voltage Setpoint Accuracy Output Voltage Trim Range
OUTPUT
Temperature Coefficient Output Voltage Regulation Line Regulation Load Regulation Ripple & Noise (NOTE 1) Transient Response 1.2 Vout 5.0 Vout Turn-On Time Remote Sense Compensation Overcurrent Protection GENERAL Switching Frequency MTTF per ML-HDBK-217 Ground Benign
0.002 Vin = 36V - 75V, Iout = Max Vin = 48V, Iout = 0-Max Vin = 48V, < 20Mhz bandwidth Step change in output current (50%-100% Step @ 1A/mS) Vin = 48V Vin = 48V Vin = 48V Vin = 48V 105 380 Circuit Stress Method TA = +25 400 TBD 0.1 0.1
1.5 1.32 1.65 1.98 2.42 2.75 3.63 5.50 0.005 0.2 0.2 75
100 100 200
500 10 140 420
mV mV mS % % KHz Hrs
NOTE 1: Measured at 20 MHz bandwidth across a 6mf multi layer ceramic capacitor located approximately 1" from output terminals.
WPA50
REV A1
6/2003
2
PERFORMANCE CURVES: MODEL WPA50R48033 MODEL WPA50R48033
Efficiency vs. Output Current @ TA +250C; Vin = 48Vdc
Efficiency (%)
Output Current (A)
Efficiency vs. Input Voltage @ TA +250C; IO = 15A
Efficiency (%)
Input Voltage (Vdc)
Turn On Time (VIN to VOUT)
VOUT
Turn Off Time (VIN to VOUT)
184mS VOUT VIN 91mS
VIN
Time Scale = 50mS/DIV
WPA50 REV A1 6/2003
Time Scale = 50mS/DIV 3
PERFORMANCE CURVES: MODEL WPA50R48033 MODEL WPA50R48033
Primary On Time (Primary Remote to VOUT) Primary Off Time (Primary Remote to VOUT)
VOUT
VOUT 2.3mS On/Off 98mS
On/Off
Time Scale = 1mS/DIV
Time Scale = 100mS/DIV
Transient Response, 50% to 100% Load Step
Transient Response, 100% to 50% Load Step
IOUT
IOUT VOUT 158mV 190mV VOUT
Voltage Scale = 100mV/DIV; Time Scale = 100mS/DIV Settling Time = 330mS; Rate Change in IOUT = 0.18A/mS; Voltage Transient = 158mV
Voltage Scale = 100mV/DIV; Time Scale = 200mS/DIV Settling Time = 556ms; Rate Change in IOUT = 0.19A/mS Voltage Transient = 190mV
WPA50
REV A1
6/2003
4
MECHANICAL
PIN FUNCTIONS
1 2 3 4 5 6 7 8
NOTES: Pin placement tolerance: +.010 Pin material: Brass Pin Finish: Tin/Lead over Nickel Converter weight: [16g]
+Vin Remote On/Off -Vin -Vout - Sense Trim + Sense +Vout
ORDERING INFORMATION
To Find Model Number
WPA5048S y Device Family 50 Watt, Single Output, Eighth Brick, 48VDC Input Range Model Number Selected from Product Selection Chart (above) y = 012 = 1.2V, 015 = 1.5V, 018 = 1.8V, 022 = 2.2V, 025 = 2.5V, 033 = 3.3V, 050 - 5.0V, Remote On/Off Logic No Number = Positive Logic 1 = Negative Logic
Model Numbers
WPA50R48S012 WPA50R48S015 WPA50R48S018 WPA50R48S022 WPA50R48S025 WPA50R48S033 WPA50R48S050 WPA50R48S012-1 WPA50R48S015-1 WPA50R48S018-1 WPA50R48S022-1 WPA50R48S025-1 WPA50R48S033-1 WPA50R48S050-1
Part Numbers
6064958 6064959 6064960 6064961 6064962 6064963 6064964 6064967 6064968 6064969 6064970 6064971 6064972 6064973
USA: Canada: UK:
Mansfield (MA), Tel: (508) 339 3000, email: sales@murata-ps.com Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com
Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
www.murata-ps.com email: sales@murata-ps.com ISO 9001 & ISO 14001 REGISTERED
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. (c) 2009 Murata Power Solutions, Inc.
France: Japan: China:
Germany: Munchen, Tel: +49 (0)89-544334-0, email: ped.munich@murata-ps.com
Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com
WPA50
REV A1
6/2003
5

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